[patch] apparmor: use dri-enumerate abstraction
Remove backported rule and use new dri-enumerate abstraction instead.
dri-enumerate is available in AppArmor 2.13, which recently migrated
into Debian Buster.

tdf#123077 gtk3_kde5: set kfilewidget's custom widget only once
Since the event filter is only used to set the custom
widget in the KFileWidget, it can and needs to be removed
again once this has been done; which also avoids crashes.
(s. https://gerrit.libreoffice.org/#/c/67185/ for more
infos, where the same thing is done for kde5)

introduce next japanese gengou era 'reiwa'
Prepare for "Japan's Y2K" Gengou calendar era switch after 2019-04-30
The emperor Akihito will abdicate on 2019-04-30. The next emperor
will be Naruhito, but so far neither the new era name (Heisei for
Akihito) nor its abbreviation or a Unicode character are
determined. At least introduce the new era with some dummy names
(Naruhito,Na,N).